/**
 * Created by caosh on 2018/1/19 0019.
 */
/**
 * autor: xuxiao , zubaoshan
 */
(function () {
    //定义一些默认参数
    var _options = {
        ZH: {
            dayNames: ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六'],
            shortDayNames: ['周日', '周一', '周二', '周三', '周四', '周五', '周六'],
            monthNames: ['一月', '二月', '三月', '四月', '五月', '六月', '七月', '八月', '九月', '十月', '十一月', '十二月'],
            shortMonthNames: ['1月', '2月', '3月', '4月', '5月', '6月', '7月', '8月', '9月', '10月', '11月', '12月']
        },
        US: {
            dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
            shortDayNames: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
            monthNames: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
            shortMonthNames: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
        }
    }

    //定义一些api
    var _date_format_api = {

        /**
         * 格式化时间
         * @param date
         * @param fmt
         * @returns {*}
         */
        format: function (date, fmt) {
            var o = {
                'M+': date.getMonth() + 1, //月份
                'd+': date.getDate(), //日
                'h+': date.getHours(), //小时
                'm+': date.getMinutes(), //分
                's+': date.getSeconds(), //秒
                'q+': Math.floor((date.getMonth() + 3) / 3), //季度
                'S': date.getMilliseconds() //毫秒
            };
            if(!this.isNotEmpty(fmt)){
                fmt = 'yyyy-MM-dd hh:mm:ss';
            }
            if (/(y+)/.test(fmt)) {
                fmt = fmt.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length));
            }
            for (var k in o) {
                if (new RegExp('(' + k + ')').test(fmt)) {
                    fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (('00' + o[k]).substr(('' + o[k]).length)));
                }
            }
            return fmt;
        },

        formatToDate: function (dateStr) {
            if(this.isNotEmpty(dateStr) ){
                return new Date(Date.parse(dateStr.replace(/-/g,   "/")));
            }
            return '';
        },

        /**
         * 得到一天的开始 date类型
         * @param date
         */
        getDateStart: function (date) {
            var fmt = 'yyyy-MM-dd';
            var dateStartStr = this.getDateStartStr(date, fmt);
            var startTime = new Date(Date.parse(dateStartStr));
            return startTime;
        },

        /**
         * 得到一天的开始 str 类型
         * @param date
         */
        getDateStartStr: function (date, fmt) {
            if (typeof fmt == 'undefined') {
                fmt = 'yyyy-MM-dd';
            }
            var dateStr = this.format(date, fmt);
            dateStr += ' 00:00:00';
            return dateStr;
        },

        /**
         * 得到一天的结束 date类型
         * @param date
         */
        getDateEnd: function (date) {
            var fmt = 'yyyy-MM-dd';
            var dateEndStr = this.getDateEndStr(date, fmt);
            var endTime = new Date(Date.parse(dateEndStr));
            return endTime;
        },

        /**
         * 得到一天的结束 str 类型
         * @param date
         */
        getDateEndStr: function (date, fmt) {
            if (typeof fmt == 'undefined') {
                fmt = 'yyyy-MM-dd';
            }
            var endStr = this.format(date, fmt);
            endStr += ' 23:59:59';
            return endStr;
        },

        /**
         * 两个时间比较大小
         * @param d1
         * @param d2
         */
        compareDate: function (d1, d2) {
            if (d1 && d2) {
                if (d1.getTime() > d2.getTime()) {
                    return 1;
                } else if (d1.getTime() == d2.getTime()) {
                    return 0;
                } else if (d1.getTime() < d2.getTime()) {
                    return -1;
                }
            }
        },

        /**
         * 得到星期几, 支持中英
         * @param date
         * @param type
         * @returns {string}
         */
        getWeek: function (date, type) {
            if (date) {
                if (!this.isNotEmpty(type)) {
                    type = 0;
                }
                var index = date.getDay();
                var dateStr = '';
                switch (type) {
                    case this.WEEKTYPE.ZH_DAYNAME:
                        dateStr = _options.ZH.dayNames[index];
                        break;
                    case this.WEEKTYPE.ZH_SDAYNAME:
                        dateStr = _options.ZH.shortDayNames[index];
                        break;
                    case this.WEEKTYPE.US_DAYNAME:
                        dateStr = _options.US.dayNames[index];
                        break;
                    case this.WEEKTYPE.US_SDAYNAME:
                        dateStr = _options.US.shortDayNames[index];
                        break;
                }
                return dateStr;
            }
        },

        /**
         * 是否为闰年
         * @param date
         * @returns {boolean}
         */
        isLeapYear: function (date) {
            if (date instanceof Date) {
                return (0 == date.getYear() % 4 && (( date.getYear() % 100 != 0) || (date.getYear() % 400 == 0)));
            }
            console.warn('argument format is wrong');
            return false;
        },

        /**
         * 字符串是否为正确的时间格式，支持 - /
         * @param dateStr
         * @returns {boolean}
         */
        isValidDate: function (dateStr) {
            if (this.isNotEmpty(dateStr)) {
                var r= dateStr.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
                if(r==null){
                    return false;
                }
                var d=new Date(r[1],r[3]-1,r[4]);
                var num = (d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]);
                return (num!=0);
            }
        },

        /**
         * 增加天数
         * @param date
         * @param dayNum
         */
        addDay: function (date, dayNum) {
            if(this.isNotEmpty(date) && this.isNotEmpty(dayNum) && date instanceof Date && typeof dayNum == 'number'){
                date.setDate(date.getDate() + dayNum);
            }else{
                console.warn('date or dayNum format wrong');
            }
            return date;
        },

        addDayStr: function (dateStr, dayNum) {
            var date ='';
            if(this.isNotEmpty(dateStr) && this.isNotEmpty(dayNum) && typeof dayNum == 'number'){
                date = this.formatToDate(dateStr);
                date.setDate(date.getDate() + dayNum);
            }else{
                console.warn('dateStr or dayNum format wrong');
            }
            return date;
        },

        /**
         * 增加月份
         * @param date
         * @param dayNum
         */
        addMonth: function (date, monthNum) {
            if(this.isNotEmpty(date) && this.isNotEmpty(monthNum) && date instanceof Date && typeof monthNum == 'number'){
                date.setMonth(date.getMonth() + monthNum);
            }else{
                console.warn('date or monthNum format wrong');
            }
            return date;
        },

        addMonthStr: function (dateStr, monthNum) {
            var date ='';
            if(this.isNotEmpty(dateStr) && this.isNotEmpty(monthNum) && typeof monthNum == 'number'){
                date = this.formatToDate(dateStr);
                date.setMonth(date.getMonth() + monthNum);
            }else{
                console.warn('date or monthNum format wrong');
            }
            return date;
        },

        /**
         * 增加年份
         * @param date
         * @param dayNum
         */
        addYear: function (date, yearNum) {
            if(this.isNotEmpty(date) && this.isNotEmpty(yearNum) && date instanceof Date && typeof yearNum == 'number'){
                date.setYear(date.getFullYear() + yearNum);
            }else{
                console.warn('date or yearNum format wrong');
            }
            return date;
        },

        addYearStr: function (dateStr, yearNum) {
            var date = '';
            if(this.isNotEmpty(dateStr) && this.isNotEmpty(yearNum) && typeof yearNum == 'number'){
                date = this.formatToDate(dateStr);
                date.setYear(date.getFullYear() + yearNum);
            }else{
                console.warn('date or yearNum format wrong');
            }
            return date;
        },




        /**
         * 是否为空
         * @param str
         * @returns {boolean}
         */
        isNotEmpty: function (str) {
            if (str != '' && str != null && typeof str != 'undefined') {
                return true;
            }
            console.warn('argument format is wrong');
            return false;
        },

        //定义内部常量
        WEEKTYPE: {
            ZH_DAYNAME: 0,
            ZH_SDAYNAME: 1,
            US_DAYNAME: 2,
            US_SDAYNAME: 3,
        }


    }
    //这里确定了插件的名称
    this.DateFormat = _date_format_api;
})();